Lost Horizon. The recent Sherlock Holmes is pretty good as well. Having said that, calling them "stellar" probably raises your expectation of them to a level they cant fulfill:-) I could call them "awesome" but I'm not going to:-)

Gray Matter is a really good game published from the author of the Gabriel KnightsIf you're a Myst fan, well, there are some more Mysts that have been released since 2005, and I wouldn't skip on any of 'em.